<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>$_REQUEST</title>
</head>
<body>
<?php
	if(!empty($_POST)) {
		echo "<p>post_data:</p>";
		print_r($_POST);
	}
	if(!empty($_GET)) {
		echo "<p>get_data:</p>";
		print_r($_GET);
	}
	if(!empty($_REQUEST)) {
		echo "<p>request_data:</p>";
		print_r($_REQUEST);
	}
?>
	<form action="05-$_REQUEST.php? p1=2&p2=abc&age=18 " method="post">
		text1:<br>
		<input type="text" name="data1" />
		<br>
		text2:<br>
		<input type="text" name="data2" />
		<br>
		<input type="submit" name="" value="OK">
	</form>
</body>
</html>